Challenge 1: Isolating a Landscape Page with Two Page Breaks — Solution Walkthrough

Steps:
  1. Place the cursor immediately before where the wide table should
     begin.
  2. Insert > More Breaks > Insert Page Break.
     - Type: Page break
     - Style: Landscape
     - (Page number: leave as "no change" unless a restart is also
       needed)
     Click OK. The table's page now uses the Landscape Page Style,
     already oriented correctly with no further orientation setting
     needed.
  3. Place the cursor immediately after the table, at the start of
     what should become the next portrait page.
  4. Insert > More Breaks > Insert Page Break again.
     - Type: Page break
     - Style: Default Page Style
     Click OK.

Why two separate page breaks were needed:

The first page break's job is switching INTO the Landscape style at
the point the wide content begins. But without a second page break,
every page after that point would continue using Landscape
indefinitely — Writer has no automatic "snap back" once a Page Style
has been switched to, since there's no section to bound how far it
extends. The second page break is what explicitly switches back to
Default Page Style, closing off the Landscape region to just the one
page it was meant to affect.

WHY THIS WORKS AS AN ANSWER
------------------------------
This mirrors Word & PowerPoint Chapter 3's own two-section-break
exercise, but through Writer's genuinely different mechanism: instead
of TWO section breaks bounding an isolated section, it's two page
breaks that each explicitly declare which Page Style should apply
going forward — the "isolation" here comes from the second break
switching back, not from any structural boundary closing on its own.